| 单词 | throttle valve |
| 释义 | > as lemmasthrottle valve throttle valve n. (a) (in a steam engine) a valve that controls the flow of steam to the pistons; (b) (in an internal combustion engine) a valve that controls the amount of air (and fuel) entering the engine, and thus the speed of the engine. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > steam engine > [noun] > parts of > valves > throttle throttle valve1798 throttle1838 throttler1850 society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [noun] > parts of > valves > throttle throttle valve1798 throttle1838 1798 T. Barnes in J. Tann Sel. Papers Boulton & Watt (1982) I. 67 I learnt our Enginemen to draw up the Men entirely with the Throttle Valve. 1824 ‘R. Stuart’ Descr. Hist. Steam Engine 129 A cock or valve, called the throttle-valve or regulator, placed on the pipe conveying the steam from the boiler. 1875 E. H. Knight Amer. Mech. Dict. III. 2564/1 Throttle-valve,..in the Watt engine..a disk turning on an axis, and occupying in its transverse position the bore of the main steam-pipe..frequently an ordinary conical valve with a stem operated by a screw. 1890 Sci. Amer. Suppl. 12 Apr. 11904/3 Each cylinder..is provided with a throttle valve. 1969 W. Carroll Chevrolet V8 Performance Guide (ed. 3) 89 Be sure throttle valves on front and rear carburetors are completely closed. 2003 J. P. Lamb Perfecting Amer. Steam Locomotive vii. 124 The smokebox contains the throttle valve and piping to admit high-pressure steam. 2010 New Scientist 27 Mar. 21 Mechanical throttles use a flexible, sheathed cable, known as a Bowden cable, to transmit movement of the accelerator pedal to the engine's throttle valve. < as lemmas |
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